Improvement in car-axle boxes



UNITED STATES PATENT OFFICE.

WILLIAM GEORGE BEATIIE, OF NINE ELMS, ENGLAND.

'IMPROVEMENT IN CAR-AXLE BOXES.

Specification forming part of Letters Patent No. 134,023, dated December17, 1872.

To all whom it may concern.'

Be it known lthat I, WILLIAM GEORGE BEATTIE, of Nine Elms, in the countyof Surrey, England, have invented certain Improvements in Axle-Boxes, ofwhich the following is a specification:

These improvements will be best understood by reference to theaccompanying drawing,

y which illustrates one mode of carrying the invention into effect,Figure 1 being a vertical cross-section partly through the oil-supplychamber and partly through center of an axlebox constructed according tothis invention 5 Fig. 2, a vertical longitudinal section of the same;Fig. 3, a plan; and Fig. 4, a plan ofthe lower part of the box.

The rst part of my invention refers to apparatus for supplyingaxle-boxes with oil. I place a float, a, in the box, to which a rod, b,is connected, carrying at its other end a valve, c, which has its seatagainst the bottom of the oil-supply chamber d, the float and valveconsequently rising and falling as the oil in the box is increased ordiminished. I prefer to make the float of cork. The upper part of thebox is fitted with a cap, c, having apertures el c2 in it (see Fig. 3)to correspond with the valve-opening in the oil supply chamber d, andwith an aperture, f, leading to the upper part of the axle-bearing. Aspring, g, is placed round the central spindle h of the cap Ve, one end'of it -being attached to the cap and the other to the box, whereby thecap is always maintained in such a position that the apertures to theinterior of the axle-box are closed. If it is desired to inspect theinterior to ascertain, for example, if the supply ot' oil in the box issufficient or to pour in more oil the cap must be turned round until theapertures c1 c2 are brought opposite the apertures at d and f. Onreleasing the cap the spring brings it back to its normal closedposition. To lubricate the axle the band lw of cotton or wicking isemployed, the same passing over rods i t', and having a Weight, j, tokeep the pad] in contact with the axle. The ends of the wicks hang inthe oil.

The next part of my invention consists in forming projections m nz roundthe interior of the bottom oil-chamber above the oil-level,

Y ,and also lin sonie cases partition or brackets n, so that the motionof the oil is restrained, and it is prevented from being thrown out ofthe box.

The next part of my invention refers to an arrangement for preventingthe lubricant from escaping from axle-boxes as well as to an arrangementfor preventing dirt or dust from entering. For these purposes I fit adoublelanged collar or shield, o, round the axle at a slight distancefrom the journal, and I form a groove or annular recess in the axle-boxinA which the flange nearest the journal is contained. The bottom of thegroove is inclined downward, as shown, toward the interior of the box,so that any oil that may travel along the journal or may be thrown upagainst the flange is intercepted and thrown oli' on the inclinedsurface of the groove, and so returned. The outer collar flange orshield is partly contained in a recess formed in the back of theaxle-box, and is formed with projecting ribs pp, as more clearly shownby Fig. 5, which is an end view of the collar, and as the axle revolvesa current of air is created by the ribs p so as to throw off any dirt ordust which may be thrown against the back of the axle-box.

I claim as my inventionl. 'lhe valve c and the lioat a in combinationwith the oil-supply chamber d, and journal, substantially as set forth.

A2. rIhe cap c, with spring g and apertures c1 and e2, in combinationwith the apertures at d andf, substantially as and for the purposesspecified.

3. The projections m and brackets n, severally or in combination,substantially as and for the purposes set forth.

4. The collar or shield o upon the axle having two flanges, one insideand the other outside the axle-box, as and for the purposes set forth.

5. The ribs p on the collar o, substantially as and for the purpose setforth.

VILLIAM GEORGE BEATTIE.

Witnesses:

PETER J oNsoN,

A89 Chancery Lane, W. C'. DANI.. FORTHAM,

24' Royal Exchange, London.

oil-box, f

